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Review quiz 1 Year 9 acids metals carbonates formulae configurat

Total questions: 150

Worksheet time: 3hrs 0mins

Name
Class
Date
1.
An atom is considered an isotope if it has extra: 
a)
Protons
b)
Neutrons
c)
Electrons
d)
Orbitals
2.
An atom is considered an ion if it has extra: 
a)
Protons
b)
Neutrons
c)
Electrons
d)
Orbitals
3.
How many valence electrons does an atom of carbon (6) have? 
a)
1
b)
2
c)
3
d)
4
4.
An isotope has extra: 
a)
Protons
b)
Charge
c)
Mass
d)
Oribitals
5.
An ion has extra: 
a)
Charge
b)
Valence Electrons
c)
Mass
d)
Orbitals
6.
Carbon has an atomic number of 6. If an isotope of Carbon has a mass of 14, how many neutrons does it have? *Hint: Use subtraction
a)
20
b)
7
c)
6
d)
8
7.
An ion of Chlorine gains one extra electron (-1). What is its new charge? 
a)
-1
b)
+1
c)
+2
d)
-2
8.
An ion of Sodium loses one electron (-1). What is its new charge? 
a)
-1
b)
+1
c)
-2
d)
+2
9.
An ion has 3 protons (+) and 5 electrons (-). What is its total charge? 
a)
+8
b)
-8
c)
+2
d)
-2
10.
An ion has 8 protons (+) and 5 electrons (-). What is its charge? 
a)
+13
b)
+3
c)
-3
d)
-13
11.
The _________________ is the number of protons in the nucleus: 
a)
atomic number
b)
atomic mass
c)
charge
d)
orbital
12.
When two atoms of DIFFERENT elements combine, they form a ________________. 
a)
electron
b)
element
c)
compound
d)
mixture
13.
Which of the following is an acid?
a)
chocolate
b)
rust
c)
lemon juice
d)
soap
14.
Which of the following is a base? 
a)
vinegar
b)
salt water
c)
orange juice
d)
soap
15.
Bases have a pH level of: 
a)
8 to 14
b)
4 to 6
c)
7
d)
0 to 3
16.
Acids have a pH level of: 
a)
7
b)
8 to 11
c)
0 to 7
d)
12 to 14
17.
What is an ion?
a)
A Charged Atom
b)
A Large Atom
c)
A Small Atom
d)
A Cute Atom
18.
Why are ions formed?
a)
To make our lives difficult
b)
Because atoms want 8 valence electrons
c)
Because atoms have the same number of protons and electrons
d)
Because atoms gained neutrons
19.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
20.
An atom becomes _______ when it loses electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
21.
A Radium atom wants...
a)
One more electron
b)
One less electron
c)
Two more electrons
d)
Two less electrons
22.
What is a Rubidium ion's symbol?
a)
Rb-
b)
Rb+
c)
Rb-2
d)
Rb+2
23.
What is the ionic symbol for a phosphorus atom?
a)
P-3
b)
P+3
c)
P-2
d)
P+2
24.
What is the ionic symbol for Krypton?
a)
Kr
b)
Kr+
c)
Kr-
d)
Kr-2
25.
What is the ionic symbol for a Caesium atom?
a)
Cs+
b)
Cs-
c)
Cs+2
d)
Cs-2
26.

Ions are created by changing the number of -

(a)  

27.

Elements in group 1

a)

Gain 1 electron

b)

Lose 1 electron

c)

Have a full outer shell

d)

has 17 valence electrons

28.
Valence electrons are: 
a)
Electrons farthest away from the nucleus
b)
Electrons closest to the nucleus
c)
Electrons that just come and go - they don't stay with the atom
29.
True or False? Neutrons have a negative charge
a)
True
b)
False
30.
If an element has 3 valence electrons, what charge will likely form on its ion ?
a)
+3
b)
+5
c)
-3
d)
-5
31.

Which section of the Periodic Table contains the non-metals?

a)

The left-hand block only

b)

The middle block only

c)

Everything below and to the left of the red line

d)

Everything above and to the right of the red line

32.

The 2nd and 3rd shells can hold a maximum of...

a)

One electron

b)

2 electrons

c)

8 electrons

d)

10 electrons

33.

Use your Periodic Table to identify this atom.

a)

Lithium

b)

Nitrogen

c)

Sodium

d)

Oxygen

34.

Use your Periodic Table to identify this atom.

a)

Argon

b)

Neon

c)

Sodium

d)

Magnesium

35.

Why do atoms form ions during chemical reactions?

a)

To get a full first shell

b)

To empty their inner shells

c)

To get a full outer shell

d)

To become more reactive

36.

This atom, neon is a member of the group called the noble gases. Why are the noble gases unreactive?

a)

Because they already have full outer shells

b)

Because they have an even number of electrons

c)

Because they only need to gain one electron

37.

How could I write down the electron configuration for this atom?

a)

7, 8, 2

b)

2, 8, 7

c)

17

d)

2, 8, 8

38.

To get a full outer shell, this atom will...

a)

Gain 1 electron

b)

Gain 2 electrons

c)

Lose 1 electron

d)

Lose 2 electrons

39.

How was this ion formed?

a)

An aluminium atom lost three electrons

b)

A nitrogen atom lost three electrons

c)

A nitrogen atom gained three electrons

d)

A neon atom gained electrons

40.

An oxygen atom has reacted to get a full outer shell. What is the correct charge for the ion?

a)

+

b)

-

c)

2+

d)

2-

41.

This ion was formed when a magnesium atom...

a)

lost two outer electrons

b)

gained two outer electrons

c)

lost one outer electron

d)

gained 6 electrons

42.

This is a lithium atom. To form a lithium ion it must...

a)

Gain one electron

b)

Lose one electron

c)

Gain two electrons

d)

Lose two electrons

43.

Sodium is a metal. It loses one electron when it reacts. The correct chemical symbol for a sodium ion would be..?

a)

Na+

b)

Na-

c)

Na2+

d)

Na+

44.

What is the name of CuSO4CuSO_4 ?

a)

Copper sulfide

b)

Copper sulfate

c)

Carbon sulfate

d)

Copper nitrate

45.

What is the name of AlN?

a)

Aluminium nitride

b)

Magnesium nitride

c)

Aluminium nitrate

d)

Copper nitrate

46.

What is the name of MgCO3MgCO_3 ?

a)

Manganese carbonate

b)

Magnesium carbide

c)

Magnesium carbonate

d)

Magnesium sulfate

47.

What is the name of LiCl?

a)

Lithium chloride

b)

Lithium chlorate

c)

Sodium chloride

d)

Potassium chlorate

48.

What is the name of MgCl2MgCl_2 ?

a)

Magnesium

b)

Magnesium chlorine

c)

Magnesium chlorate

d)

Magnesium chloride

49.

What is the name of K2CO3K_2CO_3 ?

a)

Potassium carbide

b)

Potassium carbonate

c)

Potassium carbon

d)

Potassium oxide

50.

What is the name of NaF?

a)

Sodium fluorine

b)

Sodium chloride

c)

Sodium fluoride

d)

Sodium fluorate

51.

What is the name of Li3NLi_3N ?

a)

Lithium

b)

Lithium nitrate

c)

Lithium nitrogen

d)

Lithium nitride

52.

What is the name of NaNO3NaNO_3 ?

a)

Sodium

b)

Sodium nitrate

c)

Sodium nitride

d)

Sodium nitrogen

53.

What is the name of CuO?

a)

Copper oxide

b)

Copper oxygen

c)

Copper oxate

d)

Copper

54.

What is the chemical formula of hydrochloric acid?

a)

HOCℓ

b)

HCℓ2

c)

HCℓ

d)

H2Cℓ

55.

What is the chemical formula of nitric acid?

a)

H2SO4

b)

HNO3

c)

HCl

d)

hno3

56.

Na2SO4 represents _____.

a)

sodium sulfite

b)

sodium sulfate

c)

sodium sulfide

d)

sodium sulfurous

57.

Which of the following is true about Na2SO4?

a)

It is made up of 3 elements.

b)

It contains 4 oxygen atoms.

c)

It contains 2 sulfur atoms.

58.

What ions are present in magnesium fluoride, MgF2?

a)

Mg2+ and F2-

b)

Mg2+ and F-

c)

Mg+ and F2-

d)

Mg2- and F+

59.

What is the chemical formula of calcium carbonate?

a)

CaCO3

b)

Ca2CO3

c)

Ca2(CO3)2

d)

Ca2C

60.

What is the chemical formula of potassium iodide?

a)

KCl

b)

PI

c)

KI

d)

PCl

61.

What is the formula of the compound formed between magnesium and oxygen?

a)

MgO

b)

Mg2O2

c)

MgO2

d)

Mg2O

62.

What is the chemical formula of silver nitrate?

a)

Ag3N

b)

AgN3

c)

Ag3NO3

d)

AgNO3

63.

What is the chemical formula of iron(II) sulfate?

a)

FeS

b)

FeSO4

c)

Fe(SO4)2

d)

Fe2(SO4)3

64.

What is the chemical formula of magnesium chloride?

a)

MgCl

b)

MgCL2

c)

MgCl2

d)

MgC2

65.

How many oxygen atoms are there in a molecule of C6H12O6?

a)

1

b)

2

c)

12

d)

6

66.

What does the subscript in a chemical formula tell you?

a)

how many molecules are present

b)

how many elements are present

c)

how many atoms are present

d)

how many neutrons are present

67.

How many elements are in this chemical formula? H2SO4

a)

1

b)

2

c)

3

d)

4

68.

How many atoms of carbon are in this formula? C6H12O6

a)

1

b)

6

c)

12

69.

What elements are represented in this chemical formula? Fe2O3

a)

Iron, oxygen

b)

Ferrium, oxygen

c)

Francium, europium, oxygen

d)

Beryilium, oxygen

70.

What is the total number of atoms in this formula? H2O2

a)

2

b)

3

c)

4

d)

6

71.

How many more atoms of oxygen than magnesium are in this formula? MgSO4

a)

2

b)

3

c)

4

d)

6

72.

Which of the following elements is least likely to form a compound?

a)

Hydrogen

b)

Argon

c)

Sodium

d)

Potassium

73.

Which one is the odd one out?

a)

sodium

b)

carbon

c)

glucose

d)

gold

74.

Is this an element or a compound? CaSO4

a)

Element

b)

Compound

75.

Which chemical formula correctly displays 1 atom of nickle and 2 atoms of fluorine?

a)

niF2

b)

Ni1F2

c)

NIF2

d)

NiF2

76.

What is the total number of atoms in this chemical formula? C8H3NaBr12

a)

12

b)

18

c)

24

d)

25

77.

Which element has the greatest number of atoms? AgNO3

a)

Silver

b)

Nitrogen

c)

Gold

d)

Oxygen

78.

Molecules that are made up of more than one type of atom are called

a)

molecules

b)

mixtures

c)

elements

d)

compounds

79.

How many elements are in this chemical formula? NaHCO3

a)

3

b)

4

c)

5

d)

6

80.

Chemical changes are shown using chemical equations. One way to show a chemical reaction is to use a word equation. Which of the following examples is a word equation showing a chemical reaction?

a)

Methane burns in oxygen to give carbon dioxide and water.

b)

Methane reacting with oxygen shows complete combustion.

c)

methane + oxygen -> water + carbon dioxide

d)

methane is a hydrocarbon

81.

Chemical equations show products and reactants but which is which?

a)

Products are on the left and reactants are on the right.

b)

Products are produced in a chemical reaction.

c)

Reactants are on the left and products are on the right.

d)

Products are on the right in a chemical reaction.

82.

Hydrogen and oxygen gases are formed when water undergoes electrolysis. Which answer shows both the correct word equation and the correctly balanced chemical equation for the reaction?

a)

water -> hydrogen + oxygen

H2O -> H2 + O2

b)

water -> hydrogen + oxygen

H2O -> H2 + O

c)

water -> hydrogen + oxygen

H2O2 -> H2 + O2

d)

water -> hydrogen + oxygen

H2O -> 2H + O

83.

Which is the correctly balanced equation?

a)

Cl2 + 2NaI → 2NaCl + I2

b)

2Cl2 + 2NaI → NaCl + 2I2

c)

Cl2 + NaI → NaCl + I2

d)

2Cl2 + NaI → 2NaCl + I2

84.

Which is the correct chemical equation for the following: Barium Chloride combined with sodium sulfide yields barium sulfide and sodium chloride

a)

BaCl + NaS → BaS+ NaCl

b)

BaCl2 + Na2S → BaS+ NaCl

c)

BaS+ NaCl → BaCl + NaS

d)

BaCl2 + Na2S → BaS+ NaCl2

85.

What is the correct formula for Lithium Oxide?

a)

LiO

b)

LiO2

c)

Li2O

d)

Li2O2

86.
Which part of the chemical equation is the product?
C6H12O6 + 6O2 ---> 6CO2 + 6H2O
a)
C6H12O6 + 6O2 
b)
6CO2 + 6H2O
87.
Select the pair of words that correctly displays the general FORMAT for writing CHEMICAL EQUATIONS.
a)
products  -->  reactants
b)
products  -->  products
c)
reactants  -->  products
d)
reactants  -->  reactants
88.

Sodium reacts with chlorine to produce sodium chloride.

Choose the correct balanced chemical equation.

a)
NaCl(s) → Cl(g) + Na(s)
b)
Na(s) + CO2(g) → NaCO2(s)
c)
2Na(s) + Cl2(g) → 2NaCl(s)
d)
Na(s) + Cl(g) → NaCl
89.
Is the following equation balanced or unbalanced ? 
N2 +3 H2 --> 2NH3
a)
Balanced
b)
Unbalanced
90.

 Be  +  ___ HCl  →   BeCl2  +   H2

a)
1
b)
2
c)
3
d)
4
91.

Magnesium can be burned in the air to produce solid magnesium oxide.

Choose the correct word equation for this reaction.

a)

Magnesium + Oxygen→ Magnesium oxide

b)

Magnesium + Oxygen→ Magnesium oxygen

c)

Magnesium + Oxygen→ Magnesium oxate

d)

Magnesium + Oxygen→ Magnesium oxy

92.

What is the Law of Conservation of Mass?

a)

It states that matter cannot be created or destroyed.

b)

It states that energy cannot be created or destroyed.

c)

It states that matter can be created or destroyed.

d)

It states that sound can be created or destroyed.

93.
What is a coefficient?
a)
The small number on the right of the chemical symbol.
b)
The large number in front of a chemical formula.
c)
The number in between the chemical symbols.
d)
The number behind a chemical formula.
94.
What is the part of the chemical equation in green called? 
Fe + S --> FeS
a)
products
b)
reactants
c)
yield
d)
chemical formula
95.
What is the little number after an element in a chemical equation called.
Example: H2
a)
Coefficient 
b)
Subscript
c)
Atom
d)
Equation
96.
What coefficient should be used to make the following equation balanced?
N2+O2--> _NO 
a)
1
b)
2
c)
3
d)
4
97.
Which problem is balanced?
(Check ALL answers)
a)
PbO2 + 2H2
b)
SO2 + H20 --> H2SO4
c)
2Na + 2H2O --> 2NaOH + H2
98.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
99.
Element or compound?
H2O
a)
element
b)
compound
100.
How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
101.
Is this balanced?
Al + O2 → 2Al2O3
a)
Yes
b)
No
102.
Is the following reaction balanced?
2CH3OH + 3O2 --> 2CO2 + 4H2O
a)
yes
b)
no
103.
Is the following reaction balanced?
NaHCO3 --> Na2CO3 + H2O + CO2
a)
yes
b)
no
104.
Is the following equation balanced?
4Fe + 3O2 --> 2Fe2O3
a)
yes
b)
no
105.
CaCO3 represents a chemical
a)
Symbol
b)
Formula
c)
Subscript
d)
Reaction
106.
A molecule is smaller than an atom.
a)
True
b)
False
107.

How many molecules of KNO3 are shown?

a)

1

b)

2

c)

3

d)

4

108.

Name at least 3 acids that you know.

4 lines
109.

What is the gas product when metals react with diluted acid

a)

Hydrogen

b)

Oxygen

c)

Carbon dioxide

d)

helium

110.

Aluminium + hydrochloric acid =>

a)

Aluminium Chloride

b)

Aluminium Chloride + water

c)

Aluminium Floride + hydrogen

d)

Aluminium Chloride + hydrogen

111.

How can you test the hydrogen gas ?

a)

When a burning splint is placed near the opening of a test tube containing this gas, a popping sound occurs.

b)

A glowing splint will reignite when placed in a test tube of this gas.

c)

When moist litmus paper is placed in a test tube of this gas, it turns red.

d)

It makes the limewater turns milky

112.

Does copper react with diluted sulfuric acid. ?

a)

true

b)

False

113.

Metal + Acid -> ___ + ___

a)

Salt + Hydrogen

b)

Metal Hydroxide + Hydrogen

c)

Metal Oxide + Hydrogen

d)

Metal Carbonate + Hydrogen

114.

Zinc + sulphuric acid ->

a)

hydrogen + Zinc sulphate

b)

Zinc sulphide + hydrogen

c)

Zinc Sulphur + hydrogen

d)

Zinc sulphate + helium

115.

How can you test for hydrogen gas?

a)

sniff it

b)

squeaky pop test

c)

add universal indicator

d)

add lemon water

116.

Which of the following elements react quickly with cold water?

a)

Sodium

b)

Iodine

c)

Helium

d)

Hydrogen

117.

What happens when metals react with water?

a)

Hydrogen gas is formed

b)

Metal hydroxide and hydrogen gas is formed

c)

Metal hydroxide is formed

d)

Metal oxide is formed

118.

When potassium reacts with oxygen in the air what happens?

a)

it brings out bubbles

b)

it turns into green

c)

it will stay the same

d)

it catches fire

119.

In this chemical reaction, which is the product/s?

Magnesium + Oxygen --> Magnesium oxide

a)

magnesium

b)

magnesium and oxygen

c)

magnesium oxide

d)

oxygen

120.

What is the scientific term given when something burns?

a)

a fuel

b)

flammable

c)

combustion

d)

heating

121.
How are metal oxides formed?
a)
When metals react with oxide.
b)
When metals react with water.
c)
When metals react with air.
d)
When metals react with oxygen.
122.
Metals that react quickly/strongly with water and acids are called?
a)
Reactive
b)
Unreactive
c)
Dangerous
d)
Corrosive
123.
How can you tell that a metal is reacting with water?
a)
Colour change
b)
Bright light
c)
Fizzing
d)
It gets colder
124.
What gas is produced when sodium reacts with water?
a)
Hydrogen
b)
Carbon dioxide
c)
Carbon monoxide
d)
Water vapour
125.
Which salt will be produced if magnesium react with hydrochloric acid?
a)
Magnesium oxide
b)
Magnesium sulfate
c)
Magnesium sulfide
d)
Magnesium chloride
126.
An acid reacts with metal to produce 
a)
Carbon dioxide 
b)
Hydrogen gas
c)
Hydrogen gas and water 
d)
Salt and hydrogen gas 
127.
What type of reaction is the following: 
HCl  + Zn --> ZnCl2 + H2
a)
Neutralisation
b)
Acid and a metal 
c)
Acid and a carbonate 
d)
Ionic 
128.
When magnesium reacts with copper sulphate, there are two products. What are they?
a)
Magnesium  and Copper
b)
Magnesium Sulphate and Copper
c)
Magnesium Sulphate and Copper Sulphate
d)
Magnesium and Copper Sulphate
129.

Complete the word equation below:

Acid + alkali --> ............... + water

a)

water

b)

salt

c)

gold

d)

metal

130.

.............................. + sodium hydroxide --> sodium chloride + water

a)

Nitric acid

b)

Sulphuric acid

c)

Hydrochloric acid

d)

Ethanoic acid

131.

Toothpaste contain .................. that neutralize acid formed by bacteria.

a)

alkali

b)

acid

c)

antacid

d)

slaked lime

132.

The reaction between an acid and an alkali

produces salt and water. This reaction is called

a)

acidication

b)

neutralisation

c)

alkalisation

133.
In a neutralisation reaction, what is the function of the indicator?
a)
To indicate that the mixture is neutral
b)
To indicate that hot water should be added
c)
To indicate that the flask should be shaken
d)
To indicate that a precipitate is formed
134.
products of a neutralisation reaction are always
a)
an acid and a base
b)
an acid and a salt
c)
salt and water
d)
salt and base
135.

The reaction between an acid and alkali produces ____________

a)

salt

b)

acidic solution

c)

water

d)

alkaline solution

136.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
137.

What colour is Universal indicator when the solution is neutral?

a)

Red

b)

Green

c)

Blue

d)

Purple

138.

If this product is detergent, most probably it is

a)

acid

b)

neutral

c)

Alkali

139.

Which of the following is neutral?

a)

Water

b)

Acid

c)

Salt

d)

Alkali

140.

metal + acid -->

a)

salt + hydrogen

b)

salt + water

c)

salt + carbon dioxide

141.

Metal hydroxide + acid -->

a)

salt + water

b)

salt + oxygen

c)

salt + hydrogen

d)

salt + water + carbon dioxide

142.

Metal carbonate + acid -->

a)

salt + water

b)

salt + oxygen

c)

salt + hydrogen

d)

salt + water + carbon dioxide

143.
Complete the following reaction:
Sulphuric acid + sodium carbonate
--> 
a)
Carbon dioxide + water 
b)
calcium carbonate + water + carbon dioxide 
c)
Sodium sulphate + water + carbon dioxide 
d)
Sodium chloride + water + carbon dioxide 
144.

Complete the following reaction:

Hydrochloric acid + magnesium hydroxide -->

a)

Magnesium chloride + water

b)

Magnesium + water

c)

Magnesium chloride + hydrogen

d)

Magnesium chloride + water + carbon dioxide

145.

Complete the following reaction:

Sulphuric acid + magnesium oxide -->

a)

Magnesium sulphate + water

b)

Magnesium + water

c)

Magnesium sulphate + hydrogen

d)

Magnesium sulphate + water + carbon dioxide

146.

Complete the following reaction:

Nitric acid + sodium -->

a)

Sodium nitrate + water

b)

Sodium + Water

c)

Sodium nitrate + hydrogen

d)

Sodium nitrate + water + carbon dioxide

147.
Which is the stronger acid?
a)
pH 1
b)
pH 4
c)
pH 8
d)
pH 13
148.
What salt is produced if you react sodium hydroxide with hydrochloric acid?
a)
sodium hydroxide
b)
sodium sulfate
c)
sodium nitrate
d)
sodium chloride
149.
A salt is formed when nitric acid combines with sodium hydroxide. What is the name of the salt?
a)
Sodium chloride
b)
Sodium nitrate
c)
Hydrogen Nitrate
d)
Nirate
150.
Name the salt produced when reacting potassium hydroxide and phosphoric acid?
a)
Potassium chloride
b)
potassium nitrate
c)
potassium sulfate
d)
potassium phosphate

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